Manufactured by CHG Bearing, the MR115 is a precision Metric Miniature Deep Groove Ball Bearings. Key dimensional parameters include a 5 mm bore diameter, a 11 mm outer diameter, and a mm overall width. This component is designed to meet standard load requirements and ensure consistent operational performance. For comprehensive technical evaluation, please explore the detailed specifications, dimensional data, product images, and CAD drawings provided below. A complete PDF data sheet is also readily available for direct download to support your engineering and procurement needs.
MR115 - Metric Miniature Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | MR115 |
| Dimensions | |
| Bore Diameter (d) | 5 mm |
| Outer Diameter (D) | 11 mm |
| Radius rs min | 0.15 mm |
| Flange Df | 12.6 mm |
| Closed Width B1 | 4 mm |
| Closed Flange Width Bf1 | 0.8 mm |
| Performance | |
| Dynamic Load Cr (N) | 716 N |
| Static Load C0r (N) | 282 N |
| Grease Speed (x1000 rpm) | 45 x1000 rpm |
| Oil Speed (x1000 rpm) | 53 x1000 rpm |
| Design Configurations | |
| Open Model | - |
| Flanged Open Model | - |
| Shielded Model | MR115ZZ |
| Flanged Shielded Model | MF115ZZ |
| 2RS | 2RS |
| 2RU | 2RU |
| TTS | - |
| Internal Design & Weight | |
| Cage Type | J |
| Ball Qty. Z | 8 |
| Ball Size Dw | 1.588 mm |
| Shielded Weight (g) | 0.62 g |
| Flanged Shielded Weight (g) | 0.81 g |
MR115 11 mm 5 mm mm Frequently Asked Questions about MR115 Metric Miniature Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
In its sealed configuration (Open Type), CHG Bearing pre-charges MR115 with premium wide-temperature lithium-complex or polyurea grease, calibrated to a 30%–35% cavity volume ratio. For open-type variants, synthetic PAO or refined mineral lubricating oils with appropriate EP (Extreme Pressure) additives should be circulated.
Standard batches of CHG Bearing MR115 conform strictly to ISO Class Normal (ABEC-1). For high-precision machine tool spindles, gearboxes, or robotics requiring tighter runouts, CHG Bearing can provide custom batches graded to ISO Class 6 (P6/ABEC-3) or ISO Class 5 (P5/ABEC-5) with 100% micrometer verification.
As standard production, CHG Bearing subjects MR115 to precision bainite or martensite quenching, offering dimensional stability up to 120°C (248°F). For high-heat processing equipment, CHG Bearing also supplies custom S0 (150°C), S1 (200°C), or S2 (250°C) stabilization heat treatments upon request to prevent residual austenite transformation.
Engineered according to international ISO boundary plans, CHG Bearing supplies MR115 with a precision bore diameter (d) of 5 mm, an outside diameter (D) of 11 mm, and a nominal ring width (B) of mm. This configuration yields an effective cross-sectional wall thickness of 0 mm and an envelope ratio (D/d) of 0, delivering compact rigidity for OEM machinery housings.
